UPDATE: Highway 1 crash victims were husband and wife, police say

Two people suffered serious, but not life-threatening, injuries when a pickup truck pulling a small trailer went off the road and crashed in a ditch on the Trans-Canada Highway Sunday afternoon, forcing a lengthy shutdown of westbound traffic through Aldergrove.

While the cause is still under investigation, it appears the accident was the result of a mechanical problem, Cpl. Mike Halskov of BC RCMP Traffic Services said.

Halskov told the Langley Advance Times the victims were a husband and wife in their forties, both Lower Mainland residents.

He explained the lengthy shutdown was required to allow officers time to collect debris from the road to help determine what caused the crash.

Due to a collision in Langley, #Abbotsford Police will be #closing Hwy 1 westbound at Mt.Lehman until further notice. Please avoid the area to allow emergency vehicle access and to avoid getting stuck in traffic.